SMART block driver plus changes to M25P and RAM drivers needed for SMART support

1 files changed, 116 insertions, 0 deletions

diff --git a/nuttx/include/nuttx/smart.h b/nuttx/include/nuttx/smart.h
new file mode 100644
index 000000000..7e9fafd77
--- /dev/null
+++ b/nuttx/include/nuttx/smart.h
@@ -0,0 +1,116 @@
+/****************************************************************************
+ * include/nuttx/smart.h
+ * Sector Mapped Allocation for Really Tiny (SMART) FLASH interface
+ *
+ *   Copyright (C) 2013 Ken Pettit. All rights reserved.
+ *   Author: Ken Pettit <pettitkd@gmail.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_NUTTX_SMART_H
+#define __INCLUDE_NUTTX_SMART_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <stdint.h>
+
+/****************************************************************************
+ * Pre-Processor Definitions
+ ****************************************************************************/
+
+/* Macros to hide implementation */
+
+#define SMART_FMT_ISFORMATTED   0x01
+#define SMART_FMT_HASBYTEWRITE  0x02
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* The following defines the format information for the device.  This 
+ * information is retrieved via the BIOC_GETFORMAT ioctl.
+ */
+
+struct smart_format_s
+{
+  uint16_t sectorsize;      /* Size of one read/write sector */
+  uint16_t availbytes;      /* Number of bytes available in each sector */
+  uint16_t nsectors;        /* Total number of sectors on device */
+  uint16_t nfreesectors;    /* Number of free sectors on device */
+  uint8_t  flags;           /* Format flags (see above) */  
+  uint8_t  namesize;        /* Size of filenames on this volume */
+#ifdef CONFIG_SMARTFS_MULTI_ROOT_DIRS
+  uint8_t  nrootdirentries; /* Number of root directories on this device */
+  uint8_t  rootdirnum;      /* Root directory number for this dev entry */
+#endif
+};
+
+/* The following defines the information for writing a logical sector
+ * to the device.
+ */
+
+struct smart_read_write_s
+{
+  uint16_t logsector;     /* The logical sector number */
+  uint16_t offset;        /* Offset within the sector to write to */
+  uint16_t count;         /* Number of bytes to write */
+  const uint8_t *buffer;        /* Pointer to the data to write */
+};
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __ASSEMBLY__ */
+#endif /* __INCLUDE_NUTTX_SMART_H */